High Seas Forecast
Issued by NWS

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
000
FZNT01 KWBC 201000
HSFAT1

HIGH SEAS FORECAST FOR METAREA IV
NWS OCEAN PREDICTION CENTER WASHINGTON DC
1030 UTC SUN MAY 20 2018

CCODE/1:31:04:01:00/AOW+AOE/NWS/CCODE
SUPERSEDED BY NEXT ISSUANCE IN 6 HOURS

SEAS GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE
HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY
BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

SEE ANNOUNCEMENT OF PLANNED INMARSAT I-3 TO I-4 MIGRATION
IN 2018 AT OCEAN.WEATHER.GOV/GMDSS_NOTICE.PHP (LOWERCASE).

ONLY YOU KNOW THE WEATHER AT YOUR POSITION. REPORT IT TO THE
NATIONAL WEATHER SERVICE. EMAIL US AT
VOSOPS@NOAA.GOV(LOWERCASE).

FOR INFORMATION ON ATLANTIC ICEBERGS SEE INFORMATION FROM NORTH
AMERICAN ICE SERVICE AT HTTPS://OCEAN.WEATHER.GOV/ATL_TAB.SHTML

SECURITE

NORTH ATLANTIC NORTH OF 31N TO 67N AND WEST OF 35W

SYNOPSIS VALID 0600 UTC MAY 20.
24 HOUR FORECAST VALID 0600 UTC MAY 21.
48 HOUR FORECAST VALID 0600 UTC MAY 22.

.WARNINGS.

...STORM WARNING...
.INLAND LOW 51N71W 1004 MB MOVING NE 35 KT AND RAPIDLY
INTENSIFYING. OVER FORECAST WATERS FROM 39N TO 50N BETWEEN 59W
AND 65W AND N OF A LINE FROM 41N65W TO 34N76W AREA OF S TO SW
WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.12 HOUR FORECAST INLAND LOW 53N60W 993 MB. FROM 44N TO 49N
BETWEEN 51W AND 60W WINDS 25 TO 35 KT. SEAS 8 TO 13 FT.
ELSEWHERE BETWEEN 53N AND A LINE FROM 40N49W TO 34N76W WINDS 20
TO 30 KT. SEAS TO 10 FT.
.24 HOUR FORECAST LOW 54N50W 979 MB. FRONT TO EXTEND FROM LOW TO
50N46W TO 45N50W TO 38N75W. WITHIN 180 NM E AND SE OF FRONT N OF
45N WINDS 30 TO 40 KT. SEAS 11 TO 17 FT. ALSO WITHIN 300 NM SW
SEMICIRCLE AND 240 NM E QUADRANT AND WITHIN 240 NM E AND SE OF
FRONT N OF 40N WINDS 25 TO 35 KT. SEAS 8 TO 14 FT. ELSEWHERE
FROM 44N TO 58N AND WITHIN 360 NM SE OF FRONT WINDS 20 TO 30 KT.
SEAS TO 11 FT.
.36 HOUR FORECAST LOW 56N44W 973 MB. WITHIN 240 NM S AND 180 NM
SW QUADRANTS AND 120 NM NW OF A LINE FROM 57N46W TO 59N41W WINDS
35 TO 50 KT. SEAS 12 TO 20 FT.
.48 HOUR FORECAST LOW 58N40W 975 MB. FRONT TO EXTEND FROM 57N43W
TO 61N40W TO 62N35W. WITHIN 90 NM NW OF FRONT W OF 39W WINDS 40
TO 55 KT. SEAS 12 TO 22 FT. ELSEWHERE WITHIN 300 NM S SEMICIRCLE
AND WITHIN 240 NM NW AND N OF FRONT WINDS 25 TO 40 KT. SEAS 10
TO 20 FT.

...GALE WARNING...
.LOW 56N35W 993 MB MOVING SE 20 KT. OVER FORECAST WATERS FROM
51N TO 56N E OF 40W WINDS 25 TO 40 KT. SEAS 11 TO 17 FT.
ELSEWHERE FROM 44N TO 57N E OF 49W WINDS TO 25 KT. SEAS 8 TO 14
FT.
.24 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS WELL E OF AREA.

...GALE WARNING...
.48 HOUR FORECAST COLD FRONT TO EXTEND FROM 46N35W TO 42N44W TO
37N61W. OVER FORECAST WATERS WITHIN 180 NM SE OF FRONT N OF 40N
WINDS 25 TO 35 KT. SEAS 9 TO 14 FT. ELSEWHERE WITHIN 300 NM SE
OF FRONT N OF 35N WINDS TO 25 KT. SEAS TO 11 FT.

.SYNOPSIS AND FORECAST.

.LOW 62N42W 995 MB MOVING SE 10 KT NEXT 12 HOURS THEN TURNING
NE. BETWEEN 120 NM AND 300 NM S QUADRANT WINDS TO 25 KT. SEAS TO
11 FT.
.12 HOUR FORECAST LOW 61N40W 994 MB. FROM 55N TO 61N BETWEEN 35W
AND 45W WINDS 20 TO 30 KT. SEAS 8 TO 14 FT.
.24 HOUR FORECAST LOW 63N38W 998 MB. OVER FORECAST WATERS WITHIN
240 NM S AND SE QUADRANTS WINDS TO 25 KT. SEAS 8 TO 12 FT.
.36 HOUR FORECAST LOW AND ASSOCIATED CONDITIONS ABSORBED BY LOW
56N44W IN WARNINGS SECTION.

.36 HOUR FORECAST NEW LOW 51N59W 1003 MB. OVER FORECAST WATERS
WITHIN 240 NM SW QUADRANT WINDS TO 25 KT. SEAS LESS THAN 8 FT.
.48 HOUR FORECAST LOW 49N52W 1004 MB. WITHIN 180 NM SE AND 300
NM SW AND W QUADRANTS WINDS 20 TO 30 KT. SEAS TO 9 FT.

.48 HOUR FORECAST EXCEPT WHERE NOTED IN WARNINGS SECTION OVER
FORECAST WATERS N OF A LINE FROM 53N57W TO 49N45W TO 51N35W
WINDS TO 25 KT. SEAS IN ICE FREE WATERS TO 11 FT.

.DENSE FOG. VSBY OCCASIONALLY LESS THAN 1 NM OVER FORECAST
WATERS W OF A LINE FROM 44N60W TO 36N74W.
.24 HOUR FORECAST DENSE FOG FROM 42N TO 52N BETWEEN 44W AND 54W
AND WITHIN 180 NM S AND SE OF A LINE FROM 45N54W TO 40N75W.
.48 HOUR FORECAST DENSE FOG FROM 36N TO 39N W OF 72W.

.HIGH 34N55W 1030 MB MOVING SE 10 KT.
.24 HOUR FORECAST HIGH 32N52W 1027 MB.
.48 HOUR FORECAST HIGH 31N52W 1025 MB.

.HIGH 41N49W 1033 MB MOVING SE 20 KT.
.24 HOUR FORECAST HIGH 39N38W 1029 MB.
.48 HOUR FORECAST HIGH E OF AREA.

.HIGH 32N49W 1029 MB DRIFTING SW.
.24 HOUR FORECAST HIGH DISSIPATED.

.FORECASTER BANCROFT. OCEAN PREDICTION CENTER.

NATIONAL HURRICANE CENTER MIAMI FL

ATLANTIC FROM 07N TO 31N W OF 35W INCLUDING CARIBBEAN SEA AND
GULF OF MEXICO

SYNOPSIS VALID 0600 UTC SUN MAY 20.
24 HOUR FORECAST VALID 0600 UTC MON MAY 21.
48 HOUR FORECAST VALID 0600 UTC TUE MAY 22.

.WARNINGS.

.NONE.

.SYNOPSIS AND FORECAST.

.ATLC S OF 26N W OF 65W...AND S OF 22N BETWEEN 62W AND 65W...
INCLUDING ATLC APPROACH TO WINDWARD PASSAGE...E TO SE WINDS 20
TO 30 KT. SEAS 8 TO 10 FT.
.24 HOUR FORECAST S OF 26N BETWEEN 70W AND 78W...INCLUDING ATLC
APPROACH TO WINDWARD PASSAGE...E TO SE WINDS 20 TO 30 KT. SEAS 8
TO 10 FT.
.48 HOUR FORECAST S OF 25N BETWEEN 70W AND 79W...INCLUDING ATLC
APPROACH TO WINDWARD PASSAGE...E TO SE WINDS 20 TO 25 KT. SEAS
TO 8 FT OUTSIDE THE BAHAMAS.

.ATLC S OF 14N E OF 45W...AND SOF 11N BETWEEN 45W AND 56W WINDS
20 KT OR LESS. SEAS TO 8 FT IN NE SWELL.
.24 HOUR FORECAST S OF 12N BETWEEN 45W AND 58W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NE SWELL.
.36 HOUR FORECAST S OF 12N BETWEEN 46W AND 57W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NE SWELL.
.48 HOUR FORECAST S OF 12N BETWEEN 48W AND 58W WINDS 20 KT OR
LESS. SEAS TO 8 FT IN NE SWELL.

.CARIBBEAN FROM 11N TO 15N BETWEEN 68W AND 75W...INCLUDING
GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 FT...EXCEPT LESS
THAN 8 FT IN GULF OF VENEZUELA. ELSEWHERE FROM 12N TO 15N
BETWEEN 75W AND 80W WINDS 20 KT OR LESS. SEAS 8 FT IN NE TO E
SWELL. N OF 15N BETWEEN 64W AND 70W E WINDS 20 TO 25 KT. SEAS
LESS THAN 8 FT. FROM 15N TO 18N BETWEEN 70W AND 81W E TO SE
WINDS 20 TO 25 KT. SEAS 8 FT.
.24 HOUR FORECAST FROM 11N TO 18N BETWEEN 68W AND 76W...
INCLUDING GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 FT...
EXCEPT LESS THAN 8 FT IN GULF OF VENEZUELA.
.48 HOUR FORECAST FROM 11N TO 18N BETWEEN 70W AND 76W...
INCLUDING GULF OF VENEZUELA...E WINDS 20 TO 25 KT. SEAS 8 FT...
EXCEPT LESS THAN 8 FT IN GULF OF VENEZUELA. ELSEWHERE FROM 12N
TO 16.5N BETWEEN 76W AND 80W WINDS 20 KT OR LESS. SEAS 8 FT IN
NE TO E SWELL.

.GULF OF MEXICO FROM 20N TO 23N BETWEEN 90W AND 94W E WINDS 20
TO 25 KT. SEAS LESS THAN 8 FT.
.06 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.
.18 HOUR FORECAST FROM 19.5N TO 21.5N BETWEEN 89W AND 91.5W N TO
NE WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.24 HOUR FORECAST FROM 19N TO 22.5N BETWEEN 90W AND 94W NE TO E
WINDS 20 TO 25 KT. SEAS LESS THAN 8 FT.
.30 HOUR FORECAST WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

.REMAINDER OF AREA WINDS 20 KT OR LESS. SEAS LESS THAN 8 FT.

$$
.FORECASTER GR. NATIONAL HURRICANE CENTER.



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.